Expose Mutable Properties as Immutable

It is a common API design pattern. But how to do it in Swift is not well known.

iBand + iPod > iWatch

iWatch, no. iBand and new iPod, yes. iBud, maybe.

View Controller Actor Chain

How to use UIViewController actor chain on iOS 8 and how it is implemented.

Objective-C Initializer Design Rules

Rules to follow when designing initializers.

The Inconsistent Order of View Transition Events

Code depending on the order of view transition events is dangerous for it is so inconsistent.